SOUTH CHINA SEA (Oct. 17, 2020) Gunner�s Mate 1st Class Joseph Norris, center, from Stone Mountain, Ga., verifies as Fire Controlman 3rd Class Dondre Summers, from Waldorf, Md., shows a �clear and safe� weapon during a live fire gunnery exercise aboard the Arleigh Burke-class guided-missile destroyer USS John S. McCain (DDG 56). McCain is assigned to Destroyer Squadron Fifteen (DESRON 15), the Navy�s largest forward-deployed DESRON and the U.S. 7th Fleet�s principal surface force. (U.S. Navy photo by Mass Communication Specialist 2nd Class Markus Castaneda)